IGCSE O Level Biology Practice Test 80

Heart: O Level Biology Multiple Choice Questions (MCQs) PDF Download - 80

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The Heart O Level Biology MCQ with Answers PDF (Heart O Level Biology Multiple Choice Questions (MCQs) PDF e-Book) download Ch. 17-80 to prepare IGCSE O Level Biology Practice Tests. Study Transport in Mammals Test PDF, Heart O Level Biology Multiple Choice Questions (MCQ Quiz) for SAT practice test. The Heart: O Level Biology MCQ Quiz App Download: Free certification app for heart: o level biology, structure of an insect pollinated flower, heroin effects, blood clotting: o level biology, sugar: types, formation and test test prep to study online school courses.

The MCQ Quiz: Of the total body mass, the heart weighs; "Heart: O Level Biology" App (Play Store & App Store) with answers: 0.0049; 0.0039; 0.0059; 0.0069; for SAT practice test. Practice Transport in Mammals Questions and Answers, Apple Book to download free sample for online college courses.

Heart: O Level Biology MCQ Quiz with Answers PDF Download: Test 80

MCQ 396:

Of the total body mass, the heart weighs

0.0039
0.0049
0.0059
0.0069

MCQ 397:

In plants, epicalyx in clitoria is

absent
may be 2
may be 4
more than 4

MCQ 398:

The disease AIDS stands for

Acquired Iodine Deficiency Syndrome
Acquired Inherited Defective Syndrome
Acquired Immune Deficiency Syndrome
Acquired Immune Deflated Sensations

MCQ 399:

Prothrombin helps in

fighting against diseases
giving red color to the blood
blood clotting
hormones regulations

MCQ 400:

In guard cells, Potassium ions (K⁺) combined with sugars lead to

lower the water potential in guard cells
increase the water potential in guard cells
become turgid
increased temperature of guard cells

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